These indicator strips are specific for testing the pH of the juice prior to fermentation during wine production. 50 strips per pack
reference: WSPH-001-001, range: pH 2.8 - 4.4, interval: pH 2.8 - 3.2 - 3.6 - 4.0 - 4.4, : ± pH 2.8 - 3.2 - 3.6 - 4.0 - 4, pcs/pack: 1